Some links to resources on the ArchiMate modeling language from The Open Group (now updated to 3.0)
The Open Group Youtube ArchiMate 3.0 Playlist:
https://www.youtube.com/playlist?list=PLB8F2ECDADEE616AA
The Open Group ArchiMate home page
http://www.opengroup.org/archimate
ArchiMate® 3.0 Specification (14 Jun 2016)
[Standards]
https://www2.opengroup.org/ogsys/catalog/C162
and also
http://www.opengroup.org/archimate/downloads.htm
ArchiMate® 3.0 Reference Cards (PDF) (14 Jun 2016)
[Study Materials]
https://www2.opengroup.org/ogsys/catalog/N160
A Pocket Guide to the ArchiMate® 3.0 Specification (14 Jun 2016)
[Guides]
https://www2.opengroup.org/ogsys/catalog/G163
An Introduction to the ArchiMate® 3.0 Specification (14 Jun 2016)
[White Papers]
https://www2.opengroup.org/ogsys/catalog/W168
All the downloads require registration at The Open Group web site
Read the ArchiMate 3.0 Specification online
http://pubs.opengroup.org/architecture/archimate3-doc/
The Open Group ArchiMate Model Exchange File Format Resource website:
http://www.opengroup.org/xsd/archimate
Currently this is 2.1 based, with a 3.0 update under development.
ArchiMate 2.1 Translation Glossaries - free pdf requires registration
https://www2.opengroup.org/ogsys/jsp/publications/SearchResults.jsp?search=2.1+Translation+Glossary&Search=Search+Publications
Search The Open Group publications catalog for all ArchiMate related documents and webinars:
https://www2.opengroup.org/ogsys/jsp/publications/SearchResults.jsp?search=archimate&Search=Search+Publications
Archimate 3.0 Specification (HTML)
http://pubs.opengroup.org/architecture/archimate3-doc/ (http://pubs.opengroup.org/architecture/archimate3-doc/)